infernap12/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2026-04-26 06:41:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

8189244: x86: eliminate frame::adjust_unextended_sp() overhead

Browse Source 
Reviewed-by: kvn
This commit is contained in:
Dean Long 2017-10-13 12:29:45 -07:00
parent ebf1633bd2
commit 9d33d6f6bb
2 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/hotspot/cpu/x86/frame_x86.cpp
View File

@ -383,6 +383,7 @@ void frame::verify_deopt_original_pc(CompiledMethod* nm, intptr_t* unextended_sp
//------------------------------------------------------------------------------
// frame::adjust_unextended_sp
#ifdef ASSERT
void frame::adjust_unextended_sp() {
// On x86, sites calling method handle intrinsics and lambda forms are treated
// as any other call site. Therefore, no special action is needed when we are
@ -394,11 +395,12 @@ void frame::adjust_unextended_sp() {
// If the sender PC is a deoptimization point, get the original PC.
if (sender_cm->is_deopt_entry(_pc) ||
sender_cm->is_deopt_mh_entry(_pc)) {
DEBUG_ONLY(verify_deopt_original_pc(sender_cm, _unextended_sp));
verify_deopt_original_pc(sender_cm, _unextended_sp);
}
}
}
}
#endif
//------------------------------------------------------------------------------
// frame::update_map_with_saved_link

2
src/hotspot/cpu/x86/frame_x86.hpp
View File

@ -117,7 +117,7 @@
// original sp we use that convention.
intptr_t* _unextended_sp;
void adjust_unextended_sp();
void adjust_unextended_sp() NOT_DEBUG_RETURN;
intptr_t* ptr_at_addr(int offset) const {
return (intptr_t*) addr_at(offset);